Semi Auto MG34 Questions & comments

I am working down the same path. I purchased two torched former MG34 receivers with overlapping sections and am very interested in your build progress. I am moving to Yokosuka (recognize the pin) in January so my parts will sit in storage for two years while I dream of the build. Did the jig work out for you? I was thinking about a machined aluminum jig but yours is more simple.

The jig needs to be steel. aluminum has a very dofferent expansion rate than steel, and it needs to be very rigid to hold the parts securely to prevent shifting and warping. So far I am pleased with the results and it turned out to be an easier reweld than I thought.

It is on the back burner for a while, getting the receiver done was the biggest part of the project. I have a TNW semi so finishing this one is not a priority. Now that fn30 parts are available I want to do that build next plus I have several other projects in the works.